Walking mechanism of welding head
The welding head traveling mechanism with dual drive structure and clamping mechanism solves the problems of large size, heavy weight and poor stability of existing equipment, and achieves high-precision and stable welding effect, which is suitable for efficient welding in confined spaces.
Patent Information
- Application Number
- CN202520923551.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-05-12
AI Technical Summary
Existing mobile equipment is large in size and heavy in weight, with poor stability and precision, complex structure, inconvenient maintenance, and difficulty in achieving efficient and reliable welding in confined spaces.
The welding head traveling mechanism adopts a dual-drive structure, which includes a main traveling mechanism and an auxiliary traveling mechanism. It achieves smooth movement and high precision through the engagement of a clamping mechanism with a rack and pinion guide rail and a swing mechanism, making it suitable for high-precision welding.
It features a compact structure, light weight, stable operation, and high precision, making it suitable for high-precision welding needs and enabling efficient and reliable welding in confined spaces.
Smart Images

Figure CN223863153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a walking mechanism for a welding machine head, belonging to the field of welding technology. Background Technology
[0002] The traveling mechanism is a mechanical device that enables relative movement at a certain speed between the welding head and the workpiece to complete the automated welding process. It is mainly used in fully automated welding production lines to move workpieces or welding equipment, ensuring stability and accuracy during the welding process. The traveling mechanism is a key component for the power transmission and motion control of the welding head, widely used in high-end manufacturing fields such as shipbuilding, pipelines, and heavy machinery. Its performance directly determines welding quality and efficiency. By precisely adjusting the welding head's moving speed, trajectory, and stability, the traveling mechanism ensures uniform and continuous weld seams, avoiding problems such as uneven welding and missed welds. Its high-precision guidance and load-bearing capacity can adapt to complex working conditions, ensuring repeatability and consistency in automated welding. Furthermore, the durability of the traveling mechanism and its reduction of vibration interference are decisive factors in achieving efficient and reliable welding production.
[0003] Existing mobile welding equipment generally suffers from problems such as large size and weight, poor stability and accuracy, complex structure, and inconvenient maintenance, making it impossible to achieve efficient and reliable welding production in confined welding operation spaces. Utility Model Content
[0004] The purpose of this utility model is to provide a walking mechanism for a welding machine head, which has a reasonable structure, small size, and low weight; the vehicle body adopts a dual-drive structure, which ensures smooth operation and high precision, thus solving the above-mentioned problems existing in the background art.
[0005] The technical solution of this utility model is:
[0006] A traveling mechanism for a welding machine head includes a main traveling mechanism, an auxiliary traveling mechanism, and a vehicle body. The main traveling mechanism and the auxiliary traveling mechanism are mounted on the vehicle body. The main traveling mechanism includes a main traveling motor, a first traveling gear, and a second traveling gear. The output shaft of the main traveling motor is provided with the first traveling gear, which meshes with the second traveling gear. The auxiliary traveling mechanism includes an auxiliary traveling motor, an auxiliary traveling gear, and a second auxiliary traveling gear. The output shaft of the auxiliary traveling motor is provided with the first auxiliary traveling gear, which meshes with the second auxiliary traveling gear. Both the second traveling gear and the second auxiliary traveling gear mesh with a rack guide rail. A clamping mechanism is installed below the vehicle body, and the vehicle body travels on the rack guide rail, which is clamped by the clamping mechanism.
[0007] The clamping mechanism includes a pressure plate, a large conical wheel, and a small conical wheel. The pressure plate, the large conical wheel, and the small conical wheel are all installed under the vehicle body. There are two large conical wheels and two small conical wheels. The two small conical wheels are fixedly installed on one side of the rack guide rail and are in contact with the rack guide rail. The pressure plate and the two large conical wheels are located on the other side of the rack guide rail. The two large conical wheels are located between the rack guide rail and the pressure plate. The conical wheel shafts of the two large conical wheels are connected to the pressure plate. The pressure plate is movable. By moving the pressure plate, the large conical wheels are driven to move, thereby clamping or releasing the large conical wheels from the other side of the rack guide rail.
[0008] A handle is installed on the pressure plate; rotating the handle moves the pressure plate.
[0009] The vehicle body is equipped with a swing mechanism and a swing arm in the middle. The welding gun assembly is installed on the swing arm. The swing mechanism drives the swing arm to extend and retract, thereby driving the welding gun assembly installed on the swing arm to move, so as to realize the swing of the welding gun and the electric arc.
[0010] The rack guide rail has an inverted trapezoidal cross section, and the large and small conical wheels are matched with the two sides of the rack guide rail.
[0011] Both sides of the vehicle body are equipped with handle sleeves and mounting bases. Welding wire reels are installed on the mounting bases, and handle sleeves are used to move the entire mechanism.
[0012] The main travel motor, auxiliary travel motor, rack and pinion guide, and swing mechanism are all devices known and commonly used in the field.
[0013] The advantages of this utility model are: reasonable structure, small size, and low weight; the vehicle body adopts a dual-drive structure, which makes it run smoothly and with high precision, making it more suitable for welding scenarios with high precision requirements. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the dual-drive structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;
[0017] In the diagram: Main walking mechanism 11, auxiliary walking mechanism 12, swing mechanism 13, vehicle body 14, main walking motor 101, walking gear one 102, walking gear two 103, auxiliary walking motor 104, auxiliary walking gear one 105, auxiliary walking gear two 106, rack and pinion guide rail 107, swing arm 108, handle sleeve 109, mounting base 110, handle 111, pressure plate 112, large cone wheel 113, small cone wheel 114. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and examples.
[0019] A traveling mechanism for a welding machine head includes a main traveling mechanism 11, an auxiliary traveling mechanism 12, and a vehicle body 14. The main traveling mechanism 11 and the auxiliary traveling mechanism 12 are mounted on the vehicle body 14. The main traveling mechanism 11 includes a main traveling motor 101, a first traveling gear 102, and a second traveling gear 103. The output shaft of the main traveling motor 101 is provided with the first traveling gear 102, which meshes with the second traveling gear 103. The auxiliary traveling mechanism 12 includes an auxiliary traveling motor 104, a first auxiliary traveling gear 105, and a second auxiliary traveling gear 106. The output shaft of the auxiliary traveling motor 104 is provided with the first auxiliary traveling gear 105, which meshes with the second auxiliary traveling gear 106. Both the second traveling gear 103 and the second auxiliary traveling gear 106 mesh with a rack and pinion guide rail 107. A clamping mechanism is installed below the vehicle body 14, and the vehicle body 14 travels on the rack and pinion guide rail 107, which is clamped by the clamping mechanism.
[0020] The clamping mechanism includes a pressure plate 112, a large conical wheel 113, and a small conical wheel 114. The pressure plate 112, the large conical wheel 113, and the small conical wheel 114 are all installed under the vehicle body 14. There are two large conical wheels 113 and two small conical wheels 114. The two small conical wheels 114 are fixedly installed on one side of the rack guide rail 107 and are in contact with one side of the rack guide rail 107. The pressure plate 112 and the two large conical wheels 113 are installed on the other side of the rack guide rail 107. The two large conical wheels 113 are installed between the rack guide rail 107 and the pressure plate 112. The conical wheel shafts of the two large conical wheels 113 are connected to the pressure plate 112. The pressure plate 112 is movable. By moving the pressure plate 112, the large conical wheels 113 are driven to move, thereby clamping or releasing the large conical wheels 113 from the other side of the rack guide rail 107.
[0021] A handle 111 is installed on the pressure plate 112. Rotating the handle 111 causes the pressure plate 112 to move.
[0022] The vehicle body 14 is provided with a swing mechanism 13 and a swing arm 108 in the middle. The welding gun assembly is installed on the swing arm 108. The swing mechanism 13 drives the swing arm 108 to extend and retract, thereby driving the welding gun assembly installed on the swing arm 108 to move, so as to realize the swing of the welding gun and the electric arc.
[0023] The rack guide 107 has an inverted trapezoidal cross section, and the large conical wheel 113 and the small conical wheel 114 are matched with the two sides of the rack guide 107.
[0024] Both sides of the vehicle body 14 are equipped with a handle sleeve 109 and a mounting base 110. The mounting base 110 is equipped with a welding wire spool, and the handle sleeve 109 is used to move the entire mechanism.
[0025] In this embodiment, refer to the appendix. Figure 1-3 The vehicle body 14 is equipped with a main traveling mechanism 11, an auxiliary traveling mechanism 12, and a swing mechanism 13. The main traveling mechanism 11 includes a main traveling motor 101, a first traveling gear 102, and a second traveling gear 103. The auxiliary traveling mechanism 12 includes an auxiliary traveling motor 104, a first auxiliary traveling gear 105, and a second auxiliary traveling gear 106. Both the second traveling gear 103 and the second auxiliary traveling gear 106 mesh with the rack and pinion guide rail 107. The swing mechanism 13 is a general-purpose swing slide structure. The swing arm 108 can be extended and retracted, thereby driving the welding torch assembly mounted on it to move, realizing the swing of the welding torch and the arc; both sides of the vehicle body 14 are equipped with handle sleeves 109 and mounting seats 110. The handle sleeves 109 are used to carry the entire mechanism, and each mounting seat 110 is connected to a welding wire spool; a clamping mechanism is installed below the vehicle body 14. The clamping mechanism includes a handle 111, a pressure plate 112, a large conical wheel 113 and a small conical wheel 114, and the rack and pinion guide rail 107 is clamped by the clamping mechanism.
[0026] When installing this utility model with the rack and pinion guide rail 107, rotating the handle 111 loosens the pressure plate 112, causing it to move backward and simultaneously moving the two large conical wheels 113 backward. The two small conical wheels 114 are fixed-side small conical wheels. After the distance between the two sets of conical wheels increases, they can be installed with the rack and pinion guide rail 107. During installation, the two fixed-side small conical wheels are in contact with one side of the rack and pinion guide rail 107; by tightening the handle 111, the pressure plate 112 moves forward, simultaneously moving the two large conical wheels 113 forward, reducing the distance between the two sets of conical wheels so that they are in contact with the other side of the rack and pinion guide rail 107. The rack and pinion guide rail 107 can then be clamped by the large conical wheels 113 and the small conical wheels 114. After installation, the main traveling mechanism 11 is responsible for driving the machine head to move along the guide rail 107, and the auxiliary traveling mechanism 12 passively follows to eliminate the tooth gap between the gears and the track. The main traveling mechanism 11 and the auxiliary traveling mechanism 12 work together to drive the welding machine head to move along the rack and pinion guide rail 107.
[0027] This utility model has a reasonable structure, small size, and low weight; the dual-drive structure ensures stable operation and high precision, making it more suitable for welding scenarios with high precision requirements. It can achieve efficient and reliable welding production in confined welding operation spaces.
Claims
1. A traveling mechanism for a welding machine head, characterized in that: It includes a main walking mechanism (11), an auxiliary walking mechanism (12), and a vehicle body (14). The main walking mechanism (11) and the auxiliary walking mechanism (12) are mounted on the vehicle body (14). The main walking mechanism (11) includes a main walking motor (101), a first walking gear (102), and a second walking gear (103). The output shaft of the main walking motor (101) is provided with the first walking gear (102), and the first walking gear (102) meshes with the second walking gear (103). The auxiliary walking mechanism (12) includes an auxiliary walking motor (101). 4) Auxiliary walking gear one (105) and auxiliary walking gear two (106). The output shaft of the auxiliary walking motor (104) is provided with auxiliary walking gear one (105), which meshes with auxiliary walking gear two (106). Both walking gear two (103) and auxiliary walking gear two (106) mesh with rack guide rail (107). A clamping mechanism is installed below the vehicle body (14), and the vehicle body (14) travels on rack guide rail (107). The rack guide rail (107) is clamped by the clamping mechanism.
2. The traveling mechanism of a welding head according to claim 1, characterized in that: The clamping mechanism includes a pressure plate (112), a large conical wheel (113), and a small conical wheel (114). The pressure plate (112), the large conical wheel (113), and the small conical wheel (114) are all installed under the vehicle body (14). There are two large conical wheels (113) and two small conical wheels (114). The two small conical wheels (114) are fixedly installed on one side of the rack guide rail (107) and are in contact with one side of the rack guide rail (107). The pressure plate (112) and the two large conical wheels (113) are installed on the other side of the rack guide rail (107). The two large conical wheels (113) are installed between the rack guide rail (107) and the pressure plate (112). The conical wheel shafts of the two large conical wheels (113) are connected to the pressure plate (112). The pressure plate (112) is movable.
3. The traveling mechanism of a welding machine head according to claim 2, characterized in that: A handle (111) is installed on the pressure plate (112).
4. The traveling mechanism of a welding machine head according to claim 1 or 2, characterized in that: The vehicle body (14) is provided with a swing mechanism (13) and a swing arm (108) in the middle. A welding gun assembly is installed on the swing arm (108), and the swing mechanism (13) drives the swing arm (108) to extend and retract.
5. The traveling mechanism of a welding head according to claim 3, characterized in that: The rack guide (107) has an inverted trapezoidal cross section, and the large conical wheel (113) and the small conical wheel (114) are matched with the two sides of the rack guide (107).
6. The traveling mechanism of a welding machine head according to claim 1 or 2, characterized in that: Both sides of the vehicle body (14) are equipped with a handle sleeve (109) and a mounting base (110), and a welding wire spool is installed on the mounting base (110).